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  <title>Get the length of a field</title>
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  <div id="layout-content"><div id="function.ingres-field-length" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ingres_field_length</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.2, PHP 5 &lt; 5.1.0, PECL ingres &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">ingres_field_length</span> &mdash; <span class="dc-title">Get the length of a field</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.ingres-field-length-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ingres_field_length</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
   , <span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>
   ) : <span class="type">int</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>ingres_field_length()</strong></span> returns the length of a
   field.  This is the number of bytes the server uses to store
   the field.  For detailed information, see the Ingres <em>OpenAPI User
   Guide</em>, Appendix <em>&quot;Data Types&quot;</em> in the Ingres documentation.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <strong>Related Configurations</strong><br />
   <p class="para">
    See <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>
    in <a href="ingres.configuration.html" class="link">Runtime Configuration</a>
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.ingres-field-length-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">result</code></dt>

     <dd>

      <p class="para">
       The query result identifier
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">index</code></dt>

     <dd>

      <p class="para">
       <code class="parameter">index</code> is the column number whose length
       will be retrieved.
      </p>
      <p class="para">
       The possible values of <code class="parameter">index</code> depend upon
       the value
       of <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>.
       If <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>
       is <em>1</em> (the default)
       then <code class="parameter">index</code> must be
       between <em>1</em> and the value returned
       by <span class="function"><a href="ingres_num_fields.html" class="function">ingres_num_fields()</a></span>. If <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>
       is <em>0</em> then <code class="parameter">index</code> must
       be between <em>0</em>
       and <span class="function"><a href="ingres_num_fields.html" class="function">ingres_num_fields()</a></span><em> -
       1</em>.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.ingres-field-length-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the length of a field.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.ingres-field-length-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="ingres_query.html" class="function" rel="rdfs-seeAlso">ingres_query()</a> - Send an SQL query to Ingres</span></li>
    <li class="member"><span class="function"><a href="ingres_fetch_array.html" class="function" rel="rdfs-seeAlso">ingres_fetch_array()</a> - Fetch a row of result into an array</span></li>
    <li class="member"><span class="function"><a href="ingres_fetch_assoc.html" class="function" rel="rdfs-seeAlso">ingres_fetch_assoc()</a> - Fetch a row of result into an associative array</span></li>
    <li class="member"><span class="function"><a href="ingres_fetch_object.html" class="function" rel="rdfs-seeAlso">ingres_fetch_object()</a> - Fetch a row of result into an object</span></li>
    <li class="member"><span class="function"><a href="ingres_fetch_row.html" class="function" rel="rdfs-seeAlso">ingres_fetch_row()</a> - Fetch a row of result into an enumerated array</span></li>
   </ul>
  </p>
 </div>


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